Fig. 5From: Jurassic scorpionflies (Mecoptera) with swollen first metatarsal segments suggesting sexual dimorphismGeometric morphometric analyses (GMA) of the first metatarsal segments in non-swollen and swollen morphotypes. Swollen metatarsi have higher and more variable values for both (Procrustes distance)2 and spline bending energy, and each taxon group has a relatively certain rangeBack to article page